Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
권호 표지
DOI QR코드

DOI QR Code

A Design of Linear State Observers for Motorized Seat Belt System

전동식 안전벨트 시스템의 선형 상태 관측기 설계

  • Lee, Kang-Seok (Department of Control & Instrumentation Engineering Graduate School, Changwon National University) ;
  • Choi, Chin-chul (Department of Control & Instrumentation Engineering Graduate School, Changwon National University) ;
  • Lee, Woo-Taik (Department of Control & Instrumentation Engineering, Changwon National University)
  • 이강석 (창원대학교 대학원 제어계측공학과) ;
  • 최진철 (창원대학교 대학원 제어계측공학과) ;
  • 이우택 (창원대학교 제어계측공학과)
  • Received : 2011.03.21
  • Accepted : 2011.09.28
  • Published : 2012.05.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper describes a design and a verification of linear state observers for a motorized seat belt system to estimate state information such as angular velocity and load torque. The motorized seat belt system provides functions to protect passengers and improve passenger's convenience. To realize these functions, sensors which can measure an angular velocity and load torque are needed. By use of the linear state observer, state information can be estimated without sensors. The motorized seat belt system is analysed and represented as a state space model which contains load torque as an augmented state. By the developed state space model, a full and reduced order observer are designed and verified by experiments. The full and reduced order observer are also compared from points of view of execution time and noise robustness.

Keywords

References

  1. S. K. Min, J. K. Lee and B. S. Kim, "Development of Pre-cresh Safety System Using Motorized Seat Belt," Spring Conference Proceedings, KSAE, Vol.4, pp.1219-1224, 2004.
  2. J. S. Park, T. O. Tak, I. H. Kim, M. G. Kuk, D. H. Kim, S. E. Sin, J. H. Kim, D. S. Lee and S. M. Kim, "Driving Mechanism Design of a Motorized Seatbelt Retractor," KSME Conference Proceedings, KSME, pp.2951-2956, 2006.
  3. K. S. Lee and W. T. Lee, "Development of Motorized Seat Belt Control System Using Development- process Model," Spring Conference Proceedings, KSAE, Vol.4, pp.1832-1837, 2008.
  4. M. Aldeen and H. Trinh, "Reduced-order Linear Functional Observer for Linear Systems," Control Theory and Applications, IEE Proceedings, Vol.146, pp.399-405, 1999. https://doi.org/10.1049/ip-cta:19990585
  5. B. Bauer, Seat Belt System with Confort Control, United States Patent, No.5181739, 1993.
  6. T. Maekawa, Seat Belt Retractor Employing Ultrasonic Motor, United States Patent, No. 5765774, 1998.
  7. D. Caveney, "Cooperative Vehicular Safety Applications," Control Systems Magazine, IEEE Vol.30, pp.38-53, 2010.
  8. D.-S. Choi, I.-H. Kim and Y.-I. Son, "Design of a Back-EMF Observer for Current Control of DC Motor," KIPE Conference Proceedings, KIPE, pp.294-295, 2010.
  9. M. Kim, W. Moon, D. Bae, I. Park and I. Choi, "Development of a Dynamics Analysis Model of Mechanical System Driven by DC Motors," KSPE Conference Proceedings, KSPE, pp.497- 500, 2002.
  10. S. T. Jin, J. J. Kang and W. T. Lee, "Electronic Throttle Body Model Allowing for Nonlinearity of DC Motor Driver," Transactions of KSAE, Vol.16, No.1, pp.71-77, 2008.
  11. D. G. Luenberger, "Observing the State of a Linear System," IEEE Transactions on Military Electronics, pp.74-80, 1964.
  12. S. H. Lee, S. B. Lee and C. H. Park, "A Study on the Signal Processing Method for the Hall Sensorless Position Control of ETC System Using a BLDC Motor," Transactions of KSAE, Vol.16, No.5, pp.92-99, 2008.
  13. K. T. Bae, C. C. Choi and W. T. Lee, "Design of Linear Disturbance State Estimator of Motorized Seat Belt System," Annual Conference Proceedings, KSAE, pp.1993-1998, 2010.
  14. G. S. Buja, R. Menis and M. I. Valla, "Disturbance Torque Estimation in a Sensorless DC Drive," IEEE Transaction on Industrial Electronics, Vol.43, No.4, 1995.
  15. J. C. Jung and K. S. Huh, "Robust Adaptive Observer Design for a Class of Nonlinear System via an Optimization Method," Transactions of KSME, Vol.30, No.10, pp.1249-1254, 2006.
  16. S.-J. Kim, I.-H. Kim, G.-J. Jeong, S.-N. Ju, M.-S. Kim and Y.-I. Son, "Experiments for Current Estimation of a DC/DC Boost Converter Using Luenberger Observer," CICS Conference, pp.385-386, 2009.
  17. G.-J. Ban and L.-K. Kim, "Speed Control of AC Servo Motor Using Neural Network," Transactions of KIEE, Vol.55D, No.4, pp.158-160, 2006.

Cited by

  1. Design and Verification of the Hardware Architecture for the Active Seat Belt Control System Compliant to ISO 26262 vol.65, pp.12, 2016, https://doi.org/10.5370/KIEE.2016.65.12.2030